Finding the Fourth Proportional to 83,835.15, 115,613.42 and 55,104.05

Step by Step Solution

1. Step 1: Write the proportion equation
   83,835.15 : 115,613.42 = 55,104.05 : x
2. Step 2: Convert to fraction form
   83,835.15/115,613.42 = 55,104.05/x
3. Step 3: Cross multiply
   83,835.15x = 115,613.42 × 55,104.05
4. Step 4: Simplify right side
   83,835.15x = 6,370,766,822.76
5. Step 5: Solve for x
   x = 6,370,766,822.76/83,835.15
6. Step 6: Final answer
   x = 75,991.60